compositions



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106. COMPOS COATING OR PLASTIC.

ITIONS,

. UNITED STATES PATENT OFFICE.

CHARLES EHRLIOHER, oF' WATERTOWN, NEW-YORK.

LAGGING FOR BOILERS AND PlPE S.

SPECIFICATION formingpart of Letters Patent No. 517,850, dated April 10, 1894.

To all whom it may concern:

Be it known that I, CHARLES EHRLICHER, of Watertown, in the county of J eiferson and State of New York, have invented a new and useful Improvement in Lagging for Boilers and Pipes, of which the following is a specification.

My invention relates to an improvement in lagging for boilers and pipes, consisting of a plastic mixture of fibrous talc and hair, having incorporated therewith soluble glass.

In preparing the lagging, I mix the fibrous talc, and hair in the proportion of ninety pounds of tale to ten pounds of hair and then add to an oroughly mix wit e ale and hair a soluble lass using suflicient water to bring i5 e mixture into a plastic state of the proper consistency to be spread upon the boiler or pipe with a trowel after the manner of plaster.

The mixture may be made in the same manner as mortar is commonly made, by mixing together the several ingredients in the presence of a sufiicient amount of water to render the mass easily worked.

Application filed December 14,1893- Serial No. 493.705- (1% specimens.)

While I have given the proportions of the tale and hair as ninety pounds of the former to ten pounds of the latter, I do not wish to limit myself strictly to these proportions as I find it advantageous to vary them somewhat 3o I in practice according to the quality of the materials employed. Thus for example, if the fibrous property of the talc is prominent, a Iess proportion of hair may be employed than where the fibrous property of the tale is less prominent and on the other hand,oif the hair employed is long and strong, a less quantity of the hair may be employed than where it is shorter and brittle.

What I claim is- Lagging for boilers and pipes composed of a mixture of M19, and. soluble glassin the proportions substantially as set forth.

" OHARLES EHRLICHER."

Witnesses:

FREDK. HAYNES, IRENE B. DECKER.

g Emu-amines 1200M. 

